Search Results for author: Renata Borovica-Gajic

Found 7 papers, 2 papers with code

Testing the Robustness of Learned Index Structures

1 code implementation23 Jul 2022 Matthias Bachfischer, Renata Borovica-Gajic, Benjamin I. P. Rubinstein

To simulate adversarial workloads, we carry out a data poisoning attack on linear regression models that manipulates the cumulative distribution function (CDF) on which the learned index model is trained.

Data Poisoning regression

Intelligent Autonomous Intersection Management

no code implementations9 Feb 2022 Udesh Gunarathna, Shanika Karunasekara, Renata Borovica-Gajic, Egemen Tanin

Connected Autonomous Vehicles will make autonomous intersection management a reality replacing traditional traffic signal control.

Autonomous Vehicles Management +2

Solving Dynamic Graph Problems with Multi-Attention Deep Reinforcement Learning

1 code implementation13 Jan 2022 Udesh Gunarathna, Renata Borovica-Gajic, Shanika Karunasekara, Egemen Tanin

We then extend our architecture to learn heuristics for the real-time version of combinatorial optimization problems where all input features of a problem are not known a prior, but rather learned in real-time.

Combinatorial Optimization reinforcement-learning +2

No DBA? No regret! Multi-armed bandits for index tuning of analytical and HTAP workloads with provable guarantees

no code implementations23 Aug 2021 R. Malinga Perera, Bastian Oetomo, Benjamin I. P. Rubinstein, Renata Borovica-Gajic

Our comprehensive empirical evaluation against a state-of-the-art commercial tuning tool demonstrates up to 75% speed-up on shifting and ad-hoc workloads and up to 28% speed-up on static workloads in analytical processing environments.

Decision Making Decision Making Under Uncertainty +2

DBA bandits: Self-driving index tuning under ad-hoc, analytical workloads with safety guarantees

no code implementations19 Oct 2020 R. Malinga Perera, Bastian Oetomo, Benjamin I. P. Rubinstein, Renata Borovica-Gajic

Automating physical database design has remained a long-term interest in database research due to substantial performance gains afforded by optimised structures.

Attribute Decision Making +2

Dynamic Graph Configuration with Reinforcement Learning for Connected Autonomous Vehicle Trajectories

no code implementations14 Oct 2019 Udesh Gunarathna, Hairuo Xie, Egemen Tanin, Shanika Karunasekara, Renata Borovica-Gajic

In this paper, we propose an efficient traffic optimization solution, called Coordinated Learning-based Lane Allocation (CLLA), which is suitable for dynamic configuration of lane-directions.

Autonomous Vehicles reinforcement-learning +1

A Note on Bounding Regret of the C$^2$UCB Contextual Combinatorial Bandit

no code implementations20 Feb 2019 Bastian Oetomo, Malinga Perera, Renata Borovica-Gajic, Benjamin I. P. Rubinstein

We revisit the proof by Qin et al. (2014) of bounded regret of the C$^2$UCB contextual combinatorial bandit.

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